Tear of Gaia (Patreon)

Wondrous item, common

As an action, you can crush this small, green gem underfoot to activate its magic. Plants within a 10-foot radius of you immediately become healthy and full. Fruit and vegetable-bearing plants begin to grow their produce, which grow ripe over the course of 1 hour. If there are no plants within range or you crush the gem against an inorganic material, fertile topsoil 1 inch deep spreads across the area. Healthy green grass immediately grows from the new soil. 

Made by Druidic circles, these wondrous crystals are the compressed essence of nature and all its prosperity.